Home / 1,213.58-1,676.81-1,182.47

Finding the Fourth Proportional to 1,213.58, 1,676.81 and 1,182.47

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Solution

The fourth proportional to 1,213.58, 1,676.81 and 1,182.47 is: 1,633.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213.58 : 1,676.81 = 1,182.47 : x
  2. Step 2: Convert to fraction form
    1,213.58/1,676.81 = 1,182.47/x
  3. Step 3: Cross multiply
    1,213.58x = 1,676.81 × 1,182.47
  4. Step 4: Simplify right side
    1,213.58x = 1,982,771.61
  5. Step 5: Solve for x
    x = 1,982,771.61/1,213.58
  6. Step 6: Final answer
    x = 1,633.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.